PI decision was made to discontinue the study

The investigators hypothesis is that a 22 gauge needle can yield core tissue, obviating the need to use the 19 gauge needle for core tissue procurement.

Inclusion Criteria

1. Age under 19 years
2. Pregnant women will be excluded. This will be confirmed by self-report

Exclusion Criteria

1. Age under 19 years
2. Pregnant women will be excluded. This will be confirmed by self-report

Inclusion Criteria:

• All patients who are referred to Florida Hospital Center for Interventional Endoscopy for a EUS FNA for core biopsy (19 gauge needle biopsy) who have needle dysfunction (This occurs in about 10% of patients)

Exclusion Criteria:

• Age under 19 years
• Pregnant women will be excluded. This will be confirmed by self-report